My thoughts, for what they are worth.
I did my IMC after 30-odd hours post PPL. I enjoy flying in IMC, but for extended periods it can be tiring, and as such, I apply a simple rule:
IMC is NOT an instrument rating. It is a "get me home on that iffy day" rating, NOT a "go flying on that iffy day rating."
Last Sunday, I Wx diverted on a trip to Ireland - even though the forecasts and reports from Ireland were good, and so no sweat over there - because it was too much like hard work to fly for an hour in IMC. I'll wait for a better day.
Having said that, I find that my flying is MUCH more precise now after doing the IMC, in terms of holding headings, speeds and altitudes - which in itself made it worthwhile.
TA